Abstract
Abstract Anthurium cut flowers are an economically important ornamental crop in Hawai’i, but their production is threatened by the burrowing nematode, Radopholus similis , which reduces yield and increases production costs. This study evaluated the nematicidal potential of crude extract from ground papaya seed (PGS CE), a local agricultural by-product that contains glucosinolates that hydrolyze into benzyl isothiocyanate, active against R. similis . Greenhouse trials demonstrated that monthly drenches with 0.5 or 1.0% PGS CE significantly reduced R. similis population densities in both roots and cinder media, decreased root lesion severity, and increased leaf production without phytotoxicity or adverse effects on free-living bacterivorous nematodes. While 1.0% PGS CE slightly reduced plant biomass, 0.5% PGS CE improved plant growth and flower production. Regression analysis supported the link between nematode suppression and enhanced anthurium health. Thus, PGS CE presents a sustainable, locally available, and effective biofumigant for nematode management in anthurium, warranting further optimization and future field-scale validation.
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Claims 8
Claim · model-written summary
Monthly drenches with 0.5 or 1.0% papaya seed extract significantly reduced Radopholus similis population densities in roots and cinder media.
- Treatment
- monthly drenches with 0.5 or 1.0% PGS CEe1
- Interactor
- R. similis
Radopholus similise1pest - Outcome
- R. similis population densitiese1
- Direction
- reducede1
- Setting
- Greenhouse trialse1
AnthuriumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthurium cut flowers are an economically important ornamental crop”
e1“Greenhouse trials demonstrated that monthly drenches with 0.5 or 1.0% PGS CE significantly reduced R. similis population densities in both roots and cinder media”
Claim · model-written summary
Monthly drenches with papaya seed extract decreased root lesion severity in anthurium.
- Treatment
- monthly drenches with 0.5 or 1.0% PGS CEe1
- Outcome
- root lesion severitye2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthurium cut flowers are an economically important ornamental crop”
e1“Greenhouse trials demonstrated that monthly drenches with 0.5 or 1.0% PGS CE significantly reduced R. similis population densities in both roots and cinder media”
e2“decreased root lesion severity, and increased leaf production without phytotoxicity or adverse effects on free-living bacterivorous nematodes”
Claim · model-written summary
Monthly drenches with papaya seed extract increased leaf production in anthurium.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthurium cut flowers are an economically important ornamental crop”
e1“Greenhouse trials demonstrated that monthly drenches with 0.5 or 1.0% PGS CE significantly reduced R. similis population densities in both roots and cinder media”
e2“decreased root lesion severity, and increased leaf production without phytotoxicity or adverse effects on free-living bacterivorous nematodes”
Claim · model-written summary
Monthly drenches with papaya seed extract caused no phytotoxicity or adverse effects on free-living bacterivorous nematodes.
- Treatment
- monthly drenches with 0.5 or 1.0% PGS CEe1
- Outcome
- phytotoxicity or adverse effects on free-living bacterivorous nematodese2
- Qualifier
- withoute2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthurium cut flowers are an economically important ornamental crop”
e1“Greenhouse trials demonstrated that monthly drenches with 0.5 or 1.0% PGS CE significantly reduced R. similis population densities in both roots and cinder media”
e2“decreased root lesion severity, and increased leaf production without phytotoxicity or adverse effects on free-living bacterivorous nematodes”
Claim · model-written summary
The 1.0% papaya seed extract slightly reduced anthurium plant biomass.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthurium cut flowers are an economically important ornamental crop”
e3“While 1.0% PGS CE slightly reduced plant biomass, 0.5% PGS CE improved plant growth and flower production”
Claim · model-written summary
The 0.5% papaya seed extract improved anthurium plant growth and flower production.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthurium cut flowers are an economically important ornamental crop”
e3“While 1.0% PGS CE slightly reduced plant biomass, 0.5% PGS CE improved plant growth and flower production”
Claim · model-written summary
Regression analysis linked nematode suppression with enhanced anthurium health.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthurium cut flowers are an economically important ornamental crop”
e4“Regression analysis supported the link between nematode suppression and enhanced anthurium health”
Claim · model-written summary
Papaya seed extract is a sustainable and effective biofumigant for nematode management in anthurium.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Anthurium cut flowers are an economically important ornamental crop”
e5“Thus, PGS CE presents a sustainable, locally available, and effective biofumigant for nematode management in anthurium”
The same questions in other papers
application · disease · AnthuriumPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
application · yield · AnthuriumResults agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.